Enhancing solar still performance through innovative modeling, integration with reflectors, and semi-transparent solar cells: A 3E analysis and multi-objective optimization

Ziapour, Behrooz M.; Afzal, Sadegh; Mahdian, Javad; Reza Miroliaei, Ali

doi:10.1016/j.applthermaleng.2024.122464

Cited by 12 publications

(1 citation statement)

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“…Ziapour et al (Ziapour et al, 2024) conducted a study on an innovative single-slope solar still desalination system with an enhanced modeling approach, aiming to address global desalination challenges. Through energy, exergy, and economic analyses, the system's performance is evaluated in cities such as Boushehr, Lisboa, Riyadh, and Tripoli.…”

Section: Introductionmentioning

confidence: 99%

Theoretical Performance Assessment of a Parabolic Trough Humidifying Solar Collector-Based Solar Still

Welepe,

Günerhan,

Bilir

2024

Isı Bilimi Ve Tekniği Dergisi

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In this paper, a parabolic trough humidifying solar collector-based solar still (PHSC-SS) is proposed. Its purpose is to apply some important performance improvement techniques to the flat plate humidifying solar collector-based solar still (flat plate HSC-SS), to significantly improve overall system performance. These included the use of parabolic trough solar concentrators and the design of humidifying solar collectors from evacuated tube collectors. The results reveal that, unlike flat plate HSC-SS, which must operate with a turbulent airflow regime to achieve optimum overall performance, PHSC-SS must operate with a laminar airflow regime and high inlet and outlet temperatures of air (at least 55 °C and less than 100 °C, at atmospheric pressure) in the heat collector element. For 900 W/m2 of incident solar irradiance, 2 m2 of solar collector area, and 0,00042 kg/s of air flow rate, the maximum energy efficiency, exergy efficiency and daily freshwater productivity of PHSC-SS were found to be 68,12%, 14,87% and 1,697 kg/h, respectively. Whereas for the same incident solar irradiance and solar collector area, and 0,1 kg/s of air flow rate, those of the flat plat HSC-SS were 72,9%, 1,12%, and between 1,07 – 2,923 kg/h (for inlet and outlet temperatures of air less than 30 °C, at atmospheric pressure), respectively. Although in some extreme cases freshwater productivity of flat plate HSC-SS can be higher than that of PHSC-SS, it should be noted that laminar airflow regime confers great advantages to PHSC-SS. These are higher air temperatures at condenser inlet (which ease water condensation process), no need of an auxiliary cooling device (needed in the flat plate HSC-SS), less mechanical vibrations of system, reduced condenser size, and less energy consumed by air blowers. Furthermore, the upper limit of the PHSC-SS is a PHSC-SS that operates without air flow, but rather by vaporization of water droplets at boiling point from absorber, followed by their suction to condenser, similarly to a flash evaporation.

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Section: Introductionmentioning

confidence: 99%